Tool-holder.



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JOHN BEN APERRY, or OAKLAND, CALIFORNIA.

TOOL-HOLDER.

To all whom it may concern:

Be it known that I, JOHN B. PERRY, a

citizen of the United States, and a resident With the above and other objects in view,

the nature of which will more fully appear as the description proceeds, the invention y handling of the holder.

consists in the novel construction, combination and arrangement of parts vas herein fully described, illustrated and claimed'.l

In vthe accompanying drawings, forming part of the` application, similar characters- Fig.. 2 is a longitudinal section there- A through; and 'j F ig. 3 is a vcross section on line 3 3,

Fig. 2.

In the use of percussion tools diihculty is experienced in preventing the removablev tool section from, beingv shot out, particu-Y larly in cases wherel the percussiontool isoperated accidentallyor the working tool is A Vwith slits 5 which-permitthat 'vend ofV the holderfto expand and, therefore, makes the said end of holder yielding. These slits form -iingers 6 at the narrower end which are preferably lined interiorly, near the ex tremities, by doubling the metal, as shown Specification of Letters Patent.

Application led'Jiine 9, 1917.

Patented Dec. 18, 191'?. serial No. 173,836. l v

at 7; in consequence the lingers grip better on to the tool they are to retain. Y

The holder is provided exteriorly with a jacket 8 oit a heat-insulating material, such as ber, for example. It has also slits 9 similar to the slits 5 to permit the spreading of the fingers previously referredto. This material protects the hand from heat to whichV the metallic holder may be subjected by the continuous operation of the tool. In addition the cooling of the tool is facilitated by the air passing between the slits 5 and 9.

I claim:

l. A tool holder of the class described in the shape `of a `hollowirustocone having slits at the narrower end for rendering said end yielding, and a jacketv of heat insulating material aboutthe cone to facilitate the 2. A tool holder of the class described in theshape of av hollow rustocone having longitudinal slits at the narrower end whereby yielding fingers are formed lat said narrower end, and a jacket of insulating material on the outer 'surface yof said frustocoiie, also having longitudinal slits so as notto in- Y v 3. A toolholder of theclass described Y comprising a hollow frustocone having lonterfere with the' yielding fingers.

gitudinal slits at the narrower end whereby resilient fingers are formedr in said frusto' cone 4at the `narrower end, a lining of the same metal on. the inside of said. ingers near the grippingjcf said ingerson vthe tool to be retained 'by same,V and a jacket of `indurated liber on the outer surface of the frusv tocone, said fiber having longitudinal slits in register with the slits 01": the frustccone.

, 4. A' tool holderfof the class described in the shape of a hollowxfrustocone having lateral yielding fingers at the narrower end,

va lining` at the extremities or" said ngers to fthe extremities of'same so ,as to facilitate increase the gripping action of same anda jacket about said cone to JOHN BEN PERRY.V y

Washington, D. C.

i Copies of this patent may be obtained for five cents each, by addressing ,the ""Commis'sioxiernof Patents. v 

